1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Rus_ich [418]
3 years ago
13

In space, astronauts don’t have gravity to keep them in place. That makes doing even simple tasks difficult. Gene Cernan was the

first astronaut who worked on a task outside a spaceship. He said of the experience, “Every time I’d push or turn a valve, it would turn my entire body at zero gravity. I had nothing to hold on to.” As he worked, Gene Cernan’s heart rate and temperature went so high that his fellow astronauts worried that he wouldn’t survive.
Think about routine tasks that astronauts might need to do inside and outside a spaceship. Choose several tasks, and describe the features the ship and spacesuits should have to account for zero gravity as the astronaut completes the task. Use Newton’s laws of motion in your analysis.
Physics
1 answer:
PIT_PIT [208]3 years ago
8 0

going to the toilet, and keeping cleant. no nasty bits floating around but they are weightless !

eating. pushing a fork would push back by newton 3. can't brace themselves to cut

You might be interested in
Which statement is true of a wave that’s propagating along the pavement and girders of a suspension bridge?
alexandr1967 [171]
The statement which is true of a wave that’s propagating along the pavement and girders of a suspension bridge is A. The wave is mechanical, with particles vibrating in a direction that is parallel to that of the wave, forming compressions and rarefactions.
8 0
3 years ago
Read 2 more answers
Why do electric fish need to force electric charges to move?
Anastasy [175]
The electric eel generates large electric currents by way of a highly specialized nervous system that has the capacity to synchronize the activity of disc-shaped, electricity-producing cells packed into a specialized electric organ. Hope this helps!! Good luck
3 0
3 years ago
A block is pulled across a flat surface at a constant speed using a force of 50 newtons at an angle of 60 degrees above the hori
vladimir2022 [97]

The magnitude of the friction force is 25 N

Explanation:

To solve this problem, we just have to analyze the forces acting on the block along the horizontal direction. We have:

  • The horizontal component of the pulling force, F cos \theta, where F = 50 N is the magnitude and \theta=60^{\circ} is the angle between the direction of the force and the horizontal; this force acts in the  forward direction
  • The force of friction, F_f, acting in the backward direction

According to Newton's second law, the net force acting on the block in the horizontal direction must be equal to the product between the mass of the block and its acceleration:

\sum F_x = ma_x

where

m is the mass of the block

a_x is the horizontal acceleration

However, the block is moving at constant speed, so the acceleration is zero:

a_x = 0

So the equation becomes

\sum F_x = 0 (1)

The net force here is given by

\sum F_x = F cos \theta - F_f (2)

And so, by combining (1) and (2), we find the magnitude of the friction force:

F cos \theta - F_f = 0\\F_f = F cos \theta = (50)(cos 60^{\circ})=25 N

Learn more about  force of friction:

brainly.com/question/6217246

brainly.com/question/5884009

brainly.com/question/3017271

brainly.com/question/2235246

#LearnwithBrainly

4 0
3 years ago
A satellite completes one revolution of a planet in almost exactly one hour. At the end of one hour, the satellite has traveled
topjm [15]

average velocity is vector displacement / time

time is "almost exactly one hour"

disp = -10m

v= -10/1x60x60 = -1/360m/s

5 0
3 years ago
Which of the following is not used in calculating acceleration?
Leno4ka [110]

Answer:

l think C am not pretty show

4 0
2 years ago
Other questions:
  • Is this snow or water
    11·2 answers
  • A toy car is given a quick push so that it rolls up an inclined ramp. After it is released, it rolls up, reaches its highest poi
    9·1 answer
  • A _____ is used in a motor to switch the direction of the magnetic field created by the current.
    10·1 answer
  • Mass of a body is 210g and its density is 7.981g/cm^3 what will be its volume with regard to significant figures
    9·1 answer
  • What type of ramp would a person use if they wanted to use the least amount of force to get to the top?
    12·1 answer
  • Find the horizontal and vertical components of a projectile that is fired with a velocity of 50m/s at 30 degrees relative to the
    13·1 answer
  • In a building with 10.000 cubic feet where the air changes every two hours, what the rate of air change? A. 167.7 cfm B. 83.3 cf
    15·2 answers
  • A crate of books rests on a level floor. To move it along the floor at a constant velocity, why do you exert less force if you p
    8·1 answer
  • What is the simplest way to build a graph of kinetic and potential energy?
    12·1 answer
  • Salmon often jump waterfalls to reach their
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!